Updates typstGenerator.ts to handle both addition and subtraction:
- Import WorksheetProblem union type instead of just AdditionProblem
- Import subtraction rendering and analysis functions
- Update calculateMaxDigits to handle both operators
- Update problem enrichment to analyze addition vs subtraction
- Generate Typst problem data with operator discriminator
- Dispatch to correct rendering function based on operator
- Update displayRules to handle both ProblemMeta and SubtractionProblemMeta
Also updates:
- problemGenerator.ts: Add operator field to AdditionProblem
- displayRules.ts: Support AnyProblemMeta union type
- validation.ts: Add operator to shared config fields
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
b191bb9a82